Nikon 50mm f2 Nikkor Pre-AI - Lens

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Model Details

Manual focus normal lens made for F-mount 35mm SLR cameras by Nikon in 1974. This "K" version is a transition model between older Nikkor-H.C lenses and newer AI-enabled ones. It has the external design of the later AI lenses but lacks the AI ridge and uses the same optical formula as the H.C lenses. There is no K on the body. Metal and plastic body available in black.

  • Nikon 50mm f2 Nikkor (6 elements, 4 groups)
  • Minimum focusing distance: 0.45m
  • Aperture blades: 6
  • Size: 67 x 51 mm
  • Weight: 220g
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Nikon F

Nikon introduced their first SLR, the Nikon F, in 1959. Alongside it they unveiled a series of lenses and a new lens mount that would carry them to professional success for the next decades. To this day, all Nikon DSLRs use the Nikon F mount.

In the beginning, Nikon lenses communicated aperture information to the body using a metal coupling fork, affectionately known as "bunny ears". Soon after, Nikon began using a similar system that automatically told the camera the maximum aperture of the lens. This Automatic Indexing (AI) system stuck around for decades in lenses and is still found on Nikon's high-end professional DSLRs even though new lenses communicate this information electronically.

With only minor compatibility issues (don't use a pre-AI lens on AI bodies or modern digital cameras), Nikon F lenses and bodies are pretty much interchangeable.

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Nikon 50mm f2 Nikkor Pre-AI - Lens Price History
Date Sold SKU Quality Control Price Image
23 Jan 2026 T129424 € 99,00 Nikon 50mm f2 Nikkor Pre-AI - Lens Image
18 Nov 2025 T110938 € 49,50 Nikon 50mm f2 Nikkor Pre-AI - Lens Image
17 Nov 2025 T100871 € 49,50 Nikon 50mm f2 Nikkor Pre-AI - Lens Image
18 Jun 2025 T101718 € 101,90 Nikon 50mm f2 Nikkor Pre-AI - Lens Image